Display panel or screen with a graphical user interface



FIG. 1 is a front elevational view of a first embodiment of a display panel or screen with a graphical user interface showing our new design, and,

FIG. 2 is a front elevational view of a second embodiment of a display panel or screen with a graphical user interface showing our new design.

The broken lines showing of a display panel or screen, and other elements form no part of the claimed design. Dot-dash broken lines define the boundaries of, but not included in, the claimed design. 

CLAIM The ornamental design for a display panel or screen with a graphical user interface, as shown and described. 